How do we know if we are making a difference with our program or community initiative?

In this article, the authors discuss issues related to knowing if health workers are making a difference with their community initiatives or programs being delivered in a community setting. Issues relating to the choice of evaluation questions, relevance of data sets used to answer those questions, and the rigor by which the answer can be evaluated--and the ability to generalize to other communities or populations--are explored. Finally, relevant resources to help you pursue these issues are provided.